SPIE Baltimore 4/26/2012 The National Nanotechnology Infrastructure Network’s Education and...

SPIE Baltimore 4/26/2012

The National Nanotechnology Infrastructure Network’s Education and Outreach Programs – Understanding Size and Scale

Nancy HealyNNIN Education CoordinatorGeorgia Institute of Technology


NNIN – 14 Universities Serve as

state-of the-art user facilities for nanoscale science and engineering researchers

Users conduct independent research

Funded by the National Science Foundation Award ECS0335765


NNIN Education & OutreachNNIN Education & Outreach

Encouraging STEM Involvement

Assisting Workforce Development


Why Nano Education?? The NSF estimates that by the

year 2015 there will be a need for 2 million workers worldwide in the fields of nanoscience and nanotechnology. 0.8-0.9 million – US 0.5-0.6 million – Japan 0.3-0.4 million – EU

An additional 5 million workers will be needed in support areas for these fields

By 2015, nanotechnology is expected to be a $2.5 trillion “industry”


Who are We Reaching?

K-12 Community K-12 students K-12 teachers

Undergraduates Graduate Students, post-

docs, faculty, and other professionals

General PublicASME Nano Boot Camp at the University of Minnesota

Lego activity at the University of Michigan

NNIN programs reached > 27,000 individuals in 2011Network-wide/national

programs and local programs

Understanding Size and Scale

Nanoscale 1-100nm in one

direction Differentiate

Macro, micro, nano, atomic


What is a nano?

A nano is one billionth of a meter or 10 -9 meters A normal person can walk 32km or ~

20 miles in one day. If a person were shrunk so that they were 1nm tall, how long would it take for them to walk the length of a dollar bill?

24 yearsSPIE Baltimore 4/26/2012

How “big” is nano?

A fingernail grows 1nm every second If you take a pen and put a dot on

your hand it is about 1 million nm in diameter

A sheet of paper is about 100,000 nanometers thick.

A human hair is 60,000 – 80,000 nm wide


The Big Ideas of Nanoscale Science and Engineering: A Guidebook for Secondary Teachers

Shawn Y. Stevens, LeeAnn M. Sutherland, and Joseph S. Krajick (NSTA Press, 2009)


Big Idea: Size and Scale Factors relating to size and

geometry (e.g. size, scale, shape, proportionality, dimensionality) help describe matter and predicts its behavior

Size and Scale and NSES Standard B Physical Science (5-8) Properties and changes of properties in matter

o A substance has characteristic properties, such as density, a boiling point, and solubility, all of which are independent of the amount of the sample. A mixture of substances often can be separated into the original substances using one or more of the characteristic properties. (Comment on this standard: Properties have been shown to change as they approach the nanoscale where melting points, optical properties etc. change.)


Size and Scale and NSES

Standard B Physical Science (9-12) Structure and properties of matter

o The physical properties of compounds reflect the nature of interactions among its molecules. These interactions are determined by the structure of the molecule, including the constituent atoms and the distances and angles between them.



Size and Scale Learning Goal 1

In order to know the size of an object, it is necessary to be able to compare it to a reference point


Worlds of Measurement

http://nanosense.org/activities/sizematters/sizeandscale/SM_Lesson2Student.pdf


Size and Scale

Sorting activity


Size and Scale Activity

Sorting images on a logarithmic line

Answers



Size and Scale Interactivehttp://www.mcrel.org/nanoleap/multimedia/Nanosize_me.swf


Interactives for Size and Scale

Powers of 10

cneu.psu.edu/edToolsActivities.html

http://www.cellsalive.com/howbig.htm

http://www.nanoreisen.de/english/index.html

The Scale of the Universe

http://scaleofuniverse.com/


Size and Scale Learning Goal 2 Some worlds are too small to be seen with the

naked eye Micro-, nano-, and atomic/molecular worlds.

Micro: single cells

Nano: 1-100nm i.e. diameter of DNA (2nm)

Atomic: <1nm i.e. hydrogen atom (0.1nm)

Big Idea – Tools and Instrumentation Development of new tools and

instruments helps drive scientific progress. Recent development of specialized tools has led to new levels of understanding of matter by helping scientists detect, manipulate, isolate, measure, fabricate, and investigate nanoscale matter with unprecedented precision and accuracy.


Learning Goal 1


Specialized tools are required to detect, measure, and investigate the nanoscale world because structures on this scale are too small to be seen with optical microscopes.

Scanning Electron Microscope

Tools & Instrumentation and NSES

Standard E Science and Technology 5-8 and 9-12

Abilities of technological design Understanding about science and technology



How do we “see” nanoscale objects?

Nanoscale is below the range of visible light so cannot use optical microscopes

Special tools Scanning Probe Microscopy

Atomic Force Microscope Scanning Electron Microscope


Tools that help us see micro and nano worlds


Tools that help us see micro and nano worlds

Hitachi Tabletop SEM

Scale of objects lesson

Have students create powers of ten Everyday objects Use a variety of magnifying

instruments Hand lens, magnifying glass, USB scope,

optical scope, SEM



Description: The object is a part of a wing of a blue Morpho Butterfly. The top part is an iridescent blue while the underside is a brown shade. We will look at the blue side of the wing.

Magnification: 10 X Magnification: 100 X

Magnification: 1,000 X Magnification: 10,000 X

SEM Butterfly Investigation from UCSB NNIN Site

Using tools to see smaller scales


http://www.mos.org/sln/sem/tour04.html

SEM activities Matching

Objects, USB scopes, and SEM images Provide to each group objects and

images Use USB scope or magnifier to examine

objects Match images

Mystery Case histories, bags of evidence, use

SEM to determine “evidence” against image library


SEM activities Matching

Objects, USB scopes, and SEM images Provide to each group objects and

images Use USB scope or magnifier to examine

objects Match images

Mystery Case histories, bags of evidence, use

SEM to determine “evidence” against image library


SEM activities

Summer camp Intro to SEM

Using Hitachi TM3000 Each group will explore an object

Different magnifications Create a PowerPoint on their

interpretation of images (adopted from D. Leonard/Duke TIP)



Thank you

Visit:http://www.education.nnin.org

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